Insight by Health and Wellness
One night restricted to four hours of sleep sharply suppresses innate immunity because natural killer cell cytotoxic activity falls dramatically (~70%), weakening immune surveillance against malignant cells.
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See all →Practicing specific behavioral steps produces lasting brain change because repeated actions raise moment-to-moment awareness and engage neural plasticity, allowing the brain to reorganize in ways that carry over into other contexts.
Non‑caloric sweeteners can increase hunger and weight because sweet taste signals and conditioned responses trigger cephalic‑phase insulin and appetite changes even without calories, leading to higher subsequent food intake.
Short-term sensory traces move to the hippocampus, which strengthens neurons through neuroplasticity—forming new synaptic buds that stabilize information into long-term cortical networks.